#include "junix.h"
using namespace std;

int main(int argc, char **argv)
{
	string s="hello,junix.";
	string ss;
	ss.assign(s,1,23);
	cout<<ss<<endl;
	ss.assign(s,1,3);
	cout<<ss<<endl;

	ss.assign(s.begin()+s.find("junix"),s.end());
	cout<<ss<<endl;
}
